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Add 8/40 and 7/90

8/40 + 7/90 is 5/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    8/40 = 8 × 9/40 × 9 = 72/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    7/90 = 7 × 4/90 × 4 = 28/360
  4. Add the two like fractions:
    72/360 + 28/360 = 72 + 28/360 = 100/360
  5. 100/360 simplified gives 5/18
  6. So, 8/40 + 7/90 = 5/18

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